Add interpol instantations for tU_INT4 and tREAL16

Author: jmmuller

MMVII/src/ImagesBase/cIm2d_Interpolators.cpp

@@ -342,9 +342,11 @@ INSTANTIATE_IM(tU_INT1);
 INSTANTIATE_IM(tINT1);
 INSTANTIATE_IM(tU_INT2);
 INSTANTIATE_IM(tINT2);
+INSTANTIATE_IM(tU_INT4);
 INSTANTIATE_IM(tINT4);
 INSTANTIATE_IM(tREAL4);
 INSTANTIATE_IM(tREAL8);
+INSTANTIATE_IM(tREAL16);
 
 
 };